-
BruteSearch
K-nearest neighbors 搜索 聚类时经常使用的一种方法 国外网站转载( The following utilities are provided:
- Nearest neighbor
- K-Nearest neighbors
- Radius Search
They al supports N-dimensions and work on double, it is possible to choose if return the distances.
Here is a time comparison with a vectrized m-code:
N=1000000 number of reference points
Nq=100 number of query points
dim=3 dimension of points
k=3 number of neighbor
tic
[idc,dist]=BruteSearchMex(p ,qp , k ,k) MEX
toc
tic
[idc,dist]=knnsearch(qp,p,k) VECTORIZED M-CODE
toc
p=rand(N,dim)
qp=rand(Nq,dim)
Output:
Elapsed time is 0.962640 seconds.
Elapsed time is 18.813100 seconds. )
- 2009-03-30 08:08:08下载
- 积分:1
-
SCOT
频域SCOT自适应时延估计,实质上是对广义功率频函数平方得到的数的相位谱做最小二乘拟合,求得时延估计。(Frequency domain SCOT adaptive time delay estimation, is essentially the generalized power-frequency phase of the function of the square of the number spectrum of the least squares fitting obtained delay estimates.)
- 2012-05-02 16:29:14下载
- 积分:1
-
MIMOCPMMMSEEqualization
是一个对mimo连续相位调制系统的均衡程序,利用MMSE准则来实现。(Mimo is a phase modulation system for a balanced program, using the criteria to achieve the MMSE.)
- 2009-05-08 21:59:56下载
- 积分:1
-
wavelet_packet
说明: 用小波和小波包对太阳黑子数据进行降噪处理(Using wavelet and wavelet packet noise reduction processing on the sunspot data)
- 2009-08-27 12:38:38下载
- 积分:1
-
QPSK_modulated_short_bursts
QPSK调制下的信道信噪比的分析与研究,里面的仿真不错,很详细。(QPSK modulation of channel signal to noise ratio analysis and research, which the simulation well, very detailed.)
- 2010-06-28 09:02:41下载
- 积分:1
-
icalab
ICALAB for Signal Processing
Toolbox for BSS, ICA, cICA, ICA-R, SCA and MCA
- 2008-05-01 06:23:12下载
- 积分:1
-
svpwm12345
说明: 这是一人逆变器电路的仿真,用SVPWM调制方法实现。(This is one of the inverter implementing SVPWM modulation method, using simulation.)
- 2010-04-27 19:41:37下载
- 积分:1
-
hist
对一个一定范围内的数据进行分析,并画出直方图,程序很简单,书写不太规范,敬请谅解.(Painting histogram)
- 2013-04-30 10:16:33下载
- 积分:1
-
IMU_calculator
this program takes the data from an IMU as the input and calculates the body s trajectory ,velocity and attitude .
it plots the velocities and euler angles vs time and the body s trajectory
- 2014-02-25 15:13:08下载
- 积分:1
-
mfcc
mfcc.m matlab frquency an d formant method
- 2011-01-07 22:24:24下载
- 积分:1